Bicycle-lock



E. BUYSS-E. BICYCLE LOCK.

No. 491,335. Patented Peb. 7, l893.

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UNITED STATES PATENT Eric.

EDlVARD BUYSSE, OF SOUTH BEND, INDIANA.

BlCYCLE-LOCK.

SPECIFICATION forming part of Letters Patent No. 491,335, dated February 7, 1893.

Application led August l2, 1892. Serial No. 442.929. (No model.)

To @ZZ when?, t may concern:

Be it known that I, EDWARD BUYssE, of South Bend, in the county of St. Joseph and State of Indiana, have invented certain new and useful Improvements in Bicycle-Locks; and I do hereby declare that the following is a full, clear, and exact description thereof, reterenee being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

This invention is an improvement in locks for bicycles; and its object is to provide a permanently attached device which Will prevent anyone using the bicycle satisfactorily it at all, when it islooked, and Which can be locked at any time by the simple turning of a bolt, and 'yet cannot be unlocked Without the use of a key.

Thelock has no direct connection with either wheel of the machine and leaves them free to revolve, thereby preventing any injury to the spokes or tires thereof, such as might be occasioned by the ordinary ineansand methods of locking such machines, and yet thereby the machine can be disabled so that it cannot be ridden for any distance.

The invention consists in the novel construction of the lock as Will be clearly understood from the following description and claims.

Referring to the drawings by letters marked thereon, Figure l is a side view of a bicycle having my lock attached, and locked. Figs. 2 and 3 are enlarged detail sectional views illustrating the parts locked and unlocked respectively. Fig. a is a detail vienr of the lock casing, with top and bolt removed. Fig. 5 is a detail view of the bolt detached, and Figs. 6 and 7 are transverse sections through the bolt on lines G-G and 7-'7 respectively of Fig. 5.

A represents an ordinary bicycle.

B is the sleeve through which passes the shank C ot the guide Wheel fork, to which shanl; the handle bars or steering levers are attached. The lock case D is recessed to iit to the side of sleeve Band is secured thereon in any suitable manner.

E is the locking bolt playing through openings d and l), in the case and sleeve respectively, the inner end of said boltbeing adapted to engage a socket c in shank C, and when so engaged locks the shank so that the guide Wheel cannot be turned in any direction until the bolt is disengaged. F is pivoted in case D beside opening d and pressed toward bolt E by a spring G.

f is a stop for limiting the movement of said tumbler, should the bolt be Withdrawn. This tumbler is adapted to engage with one of two annular grooves E or e in bolt E. Groove E is outermost and is engaged by the tumbler when the bolt has entered socket c, and then the Wheel is locked although the bolt can be revolved indefinitely, the tumbler can however be released by means of a key, inserted through an opening in the cover ot the case, which may be centered on a pin H. When the bolt is drawn ont the tumbler engages groove e and prevents itbeing pushed inward to engage the socket. However said groove does not extend entirely around the bolt, leaving a cam portion c2, which when the bolt is revolved will force the tumbler out of the groove until it rests on the apex ot the cam, and if at this time the bolt is pushed inward, it can slide past the tumbler (and if the shank C is properly turned) into socket c, and lock the Wheel, and the tumbler drops into groove E', permanently lookin g the bolt until it is disengaged by means ot a key as described.

The outer end ot bolt E is reduced as at E2 and passes through an opening h in the cover of the case, said opening being enlarged interiorly as at h to permit the necessary reciprocatory movements of the bolt. A cap e3 on the outer extremity of the bolt facilitates its handling.

lt will be at once understood that if the shank be locked the guide wheel cannot be turned, and therefore the Wheel cannot be ridden, as it is necessary in riding bicycles that the guide Wheel be easily turned right or left to enable the rider to maintain an equilibrium or upright position.

This lock is simple, always at hand, and can be readily applied by the owner Without a key, and yet cannot be unlocked except by forcibly disengaging the tumbler. And While l have shown but one tumbler, more could be employed, making it the more difficult to unlock the bolt.

Having thus described my invention what A locking tumbler u ICQ I claim as new and desire to secure by Letters Patent thereon is gl. In abicycle the combination of the iframe, sleeve, and fork journaled in said sleeve; With the lock case attached to the sleeve, the longitudinally movable bolt therein, having an annular groove, adapted to engage a socket in the shank of the fork and lock the same, and a tumbler pivoted in the case adapted to engage the groove of said bolt and lock it until released by a key, substantially as described.

2. The combination with the bicycle sleeve, and fork shank, of a reciprocating' and rotatory bolt adapted to engage said fork shank through an opening in the sleeve and having an annular cammed groove, a tumbler adapted to engage said groove and prevent longitudinal movement of the bolt until itis partly rotated and to lock the bolt after it engages the fork, substantially as and for the purpose specified.

3. The combination of the case, the sliding and revolvingbolt having an annular groove and a cammed groove, and atumbler adapted to engage the annular groove when the bolt is projected whereby the bolt is positively locked against longitudinal movement, but can rotate, and to engage the cammed groove when the bolt is retracted, substantially as and for the purpose described.

4. In a bicycle the combination of the look case attached to the fork sleeve, and a boltin said case adapted to project through the sleeve and engage a socketin the fork shank Within the sleeve, said bolt having a projecting nger piece, a cammed groove and an annular groove substantially as described, with a spring controlled tumbler pivoted in the case and adapted to engage said cam groove when the bolt is retracted and said annular groove when it is projected, and therebypositively lock the bolt, substantially as and for the purpose speciiied.

In testimony that I claim the foregoing as my own I affix mysignature in presence of two Witnesses.

EDVARI) BUYSSE.

Witnesses z JAMES DUsHANE, LoUIs BUYssE. 

